Instruction manual

Remote Access
Remote Access
Description
This feature allows a caller to dial into a System 25 from the public network using a predetermined
7- or 10-digit number and use some features and services. The caller may be required to dial a
barrier (security) code after reaching the system to access the features and services.
System administration can assign CO, FX, or INWATS trunks for Remote Access calls. These
trunks can be dedicated to Remote Access or shared with other kinds of calling. On dedicated
trunks, all incoming calls receive special Remote Access treatment. On shared trunks, Remote
Access is allowed only during night service times; at other times, incoming calls receive standard
trunk treatment.
If DID service is in use, a DID number (otherwise unassigned) can be administered for Remote
Access. In older releases (with or without barrier codes), the system will answer calls to this DID
number, return special dial tone to the caller and route the call to the attendant. In Release R3V3,
when no barrier code is required
administered for barrier code use,
tone.
Note: For security reasons,
barrier codes.
calls are answered as in the older releases. If the systems is
the call is not completed and the calling party receives reorder
it is NOT recommended that Remote Access be used without
When the system recognizes an incoming call as a Remote Access call, it determines whether the
trunk is shared. If it is, and if night service is not active, the call can be routed to a personal line
appearance or to a DGC group. If neither of these answering points is administered, the call goes to
an attendant for handling.
If the trunk is dedicated to Remote Access or if night service is active, the caller gets special dial
tone. If a barrier code is not required, the caller can now dial the desired number or feature access
code. Calling privileges of the caller are determined by a system-wide default Class of Restriction
(COR).
If a barrier code is required and night service is active after the second dial tone times out
(dedicated or shared remote access service), reorder tone is heard by the caller, unless a Remote
Access Night Service backup station has been assigned. For this case, the back-up station is rung.
If no barrier code is required and dial tone times out, reorder tone is heard by the caller.
If a barrier code is required, the caller dials five or more predetermined digits on hearing the special
dial tone and receives second dial tone if the barrier code matched an administered code. After the
second dial tone, the caller can call an internal number or feature access code, if allowed. The
specific barrier code dialed determines the calling privileges of the user. Up to 16 different barrier
codes can be administered for the system.
When the Remote Access caller is using a rotary voice terminal, dial pulses are not accepted by the
system after the special dial tone is returned. When dial tone times out, the caller hears reorder
tone.
If a bad barrier code is entered, reorder tone will be returned after all administered digits are
entered. If incomplete digits are dialed for the barrier code, an interdigit time out occurs and reorder
tone is applied. For either case, reorder tone remains on the call for 240 seconds, after which, the
call is dropped if the outside originator has not disconnected earlier.
November 1995
2-273